US3629541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand-held series welding tool
Assignee: Raytheon Co
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Filing: 1970-10-01
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Granted: 1971-12-21
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Expires: 1990-10-01
Abstract
Abstract A hand-held series welding tool which comprises a casing having two movable spaced electrodes interconnected by a pivot bar which transfers equalized forces from one electrode to the other, and switch means connecting the electrodes to a power supply for initiating a welding cycle when such forces reach a predetermined adjustable level.
Inventors
- 👤 James R Mims
- 👤 Palmer P Derby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:45
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/30; B23K11/31
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
119 words
A welding tool comprising a casing, a pair of elongated electrode supports extending in spaced relation within the casing, electrodes extending from one end of each of the respective supports and having effective welding tips external to the casing, said supports and electrodes being normally positioned in a common plane, each of said electrodes and adjacent portions of the respective supports being individually movable out of said plane and toward and away from a common side of the work to be welded, and pivotal means operatively connected to said supports and pivotally movable in a plane perpendicular to said first plane for equalizing pressure forces between the electrodes in response to pressure upon one or both of the electrodes.
Claim 2
Dependent Claim
119 words
A welding tool comprising a casing, a pair of elongated electrode supports extending in spaced relation within the casing, electrodes extending from one end of each of the respective supports and having effective welding tips external to the casing, said supports and electrodes being normally positioned in a common plane, each of said electrodes and adjacent portions of the respective supports being individually movable out of said plane and toward and away from a common side of the work to be welded, and pivotal means operatively connected to said supports and pivotally movable in a plane perpendicular to said first plane for equalizing pressure forces between the electrodes in response to pressure upon one or both of the electrodes.
Claim 3
Dependent Claim
114 words
A welding tool comprising a casing, a pair of elongated electrode supports extending in space relation within the casing, electrodes extending from one end of each of the respective supports and having effective welding tips external to the casIng, the electrodes and adjacent portions of the supports being movable toward and away from a common side of the work to be welded, and means for equalizing pressure forces between the electrodes, said means comprising a member disposed in spanning relation to said movable portions of the supports, and a restraining arm extending longitudinally of the device, one end of the arm engaging said member and the other end being pivotally anchored within the casing.
Claim 4
Dependent Claim
114 words
A welding tool comprising a casing, a pair of elongated electrode supports extending in space relation within the casing, electrodes extending from one end of each of the respective supports and having effective welding tips external to the casIng, the electrodes and adjacent portions of the supports being movable toward and away from a common side of the work to be welded, and means for equalizing pressure forces between the electrodes, said means comprising a member disposed in spanning relation to said movable portions of the supports, and a restraining arm extending longitudinally of the device, one end of the arm engaging said member and the other end being pivotally anchored within the casing.
Claim 5
Dependent Claim
84 words
A welding tool as set forth in claim 2 wherein said member has one surface in engagement with said supports and has means in its opposite surface interfitting with means on the adjacent surface of the restraining arm whereby movement of one support with respect to the other in a direction away from said work will cause pivotal action of said member whereby forces applied to said one support through its respective electrode will be applied to the other support and its respective electrode.
Claim 6
Dependent Claim
51 words
A welding tool as set forth in claim 3 wherein switch means is located in said casing, and leads are attached to said switch means for connecting the switch means to circuitry external of the casing, and said switch means is operable in response to pressure forces exerted upon the electrodes.
Claim 7
Dependent Claim
48 words
A welding tool as set forth in claim 4 wherein said switch means is fixedly mounted in the casing, and said restraining arm is provided with means for engaging and operating the switch means upon movement of the arm in response to pressure forces applied to the electrodes.
Claim 8
Dependent Claim
30 words
A welding tool as set forth in claim 5 wherein means is provided for restraining movement of the restraining arm and for thereby controlling the operation of the switch means.
Claim 9
Dependent Claim
43 words
A welding tool as set forth in claim 6 wherein said means for restraining movement of the arm comprises a spring connected to the arm and anchored to the casing whereby movement of the arm is accomplished against the tension of the spring.
Claim 10
Dependent Claim
35 words
A welding tool as set forth in claim 7 wherein means is provided for adjusting said spring and consequently varying the forces applied to said arm whereby the operation of said switch means is controlled.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |